1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2019, Linaro Limited 4 */ 5 6 #include <linux/bitops.h> 7 #include <linux/regmap.h> 8 #include <linux/delay.h> 9 #include <linux/slab.h> 10 #include "tsens.h" 11 12 /* ----- SROT ------ */ 13 #define SROT_HW_VER_OFF 0x0000 14 #define SROT_CTRL_OFF 0x0004 15 16 /* ----- TM ------ */ 17 #define TM_INT_EN_OFF 0x0000 18 #define TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF 0x0004 19 #define TM_Sn_STATUS_OFF 0x0044 20 #define TM_TRDY_OFF 0x0084 21 #define TM_HIGH_LOW_INT_STATUS_OFF 0x0088 22 #define TM_HIGH_LOW_Sn_INT_THRESHOLD_OFF 0x0090 23 24 struct tsens_legacy_calibration_format tsens_qcs404_nvmem = { 25 .base_len = 8, 26 .base_shift = 2, 27 .sp_len = 6, 28 .mode = { 4, 0 }, 29 .invalid = { 4, 2 }, 30 .base = { { 4, 3 }, { 4, 11 } }, 31 .sp = { 32 { { 0, 0 }, { 0, 6 } }, 33 { { 0, 12 }, { 0, 18 } }, 34 { { 0, 24 }, { 0, 30 } }, 35 { { 1, 4 }, { 1, 10 } }, 36 { { 1, 16 }, { 1, 22 } }, 37 { { 2, 0 }, { 2, 6 } }, 38 { { 2, 12 }, { 2, 18 } }, 39 { { 2, 24 }, { 2, 30 } }, 40 { { 3, 4 }, { 3, 10 } }, 41 { { 3, 16 }, { 3, 22 } }, 42 }, 43 }; 44 45 struct tsens_legacy_calibration_format tsens_8976_nvmem = { 46 .base_len = 8, 47 .base_shift = 2, 48 .sp_len = 6, 49 .mode = { 4, 0 }, 50 .invalid = { 4, 2 }, 51 .base = { { 0, 0 }, { 2, 8 } }, 52 .sp = { 53 { { 0, 8 }, { 0, 14 } }, 54 { { 0, 20 }, { 0, 26 } }, 55 { { 1, 0 }, { 1, 6 } }, 56 { { 1, 12 }, { 1, 18 } }, 57 { { 2, 8 }, { 2, 14 } }, 58 { { 2, 20 }, { 2, 26 } }, 59 { { 3, 0 }, { 3, 6 } }, 60 { { 3, 12 }, { 3, 18 } }, 61 { { 4, 2 }, { 4, 9 } }, 62 { { 4, 14 }, { 4, 21 } }, 63 { { 4, 26 }, { 5, 1 } }, 64 }, 65 }; 66 67 static int calibrate_v1(struct tsens_priv *priv) 68 { 69 u32 p1[10], p2[10]; 70 u32 *qfprom_cdata; 71 int mode, ret; 72 73 ret = tsens_calibrate_common(priv); 74 if (!ret) 75 return 0; 76 77 qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib"); 78 if (IS_ERR(qfprom_cdata)) 79 return PTR_ERR(qfprom_cdata); 80 81 mode = tsens_read_calibration_legacy(priv, &tsens_qcs404_nvmem, 82 p1, p2, 83 qfprom_cdata, NULL); 84 85 compute_intercept_slope(priv, p1, p2, mode); 86 kfree(qfprom_cdata); 87 88 return 0; 89 } 90 91 /* v1.x: msm8956,8976,qcs404,405 */ 92 93 static struct tsens_features tsens_v1_feat = { 94 .ver_major = VER_1_X, 95 .crit_int = 0, 96 .combo_int = 0, 97 .adc = 1, 98 .srot_split = 1, 99 .max_sensors = 11, 100 .trip_min_temp = -40000, 101 .trip_max_temp = 120000, 102 }; 103 104 static const struct reg_field tsens_v1_regfields[MAX_REGFIELDS] = { 105 /* ----- SROT ------ */ 106 /* VERSION */ 107 [VER_MAJOR] = REG_FIELD(SROT_HW_VER_OFF, 28, 31), 108 [VER_MINOR] = REG_FIELD(SROT_HW_VER_OFF, 16, 27), 109 [VER_STEP] = REG_FIELD(SROT_HW_VER_OFF, 0, 15), 110 /* CTRL_OFFSET */ 111 [TSENS_EN] = REG_FIELD(SROT_CTRL_OFF, 0, 0), 112 [TSENS_SW_RST] = REG_FIELD(SROT_CTRL_OFF, 1, 1), 113 [SENSOR_EN] = REG_FIELD(SROT_CTRL_OFF, 3, 13), 114 115 /* ----- TM ------ */ 116 /* INTERRUPT ENABLE */ 117 [INT_EN] = REG_FIELD(TM_INT_EN_OFF, 0, 0), 118 119 /* UPPER/LOWER TEMPERATURE THRESHOLDS */ 120 REG_FIELD_FOR_EACH_SENSOR11(LOW_THRESH, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 0, 9), 121 REG_FIELD_FOR_EACH_SENSOR11(UP_THRESH, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 10, 19), 122 123 /* UPPER/LOWER INTERRUPTS [CLEAR/STATUS] */ 124 REG_FIELD_FOR_EACH_SENSOR11(LOW_INT_CLEAR, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 20, 20), 125 REG_FIELD_FOR_EACH_SENSOR11(UP_INT_CLEAR, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 21, 21), 126 [LOW_INT_STATUS_0] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 0, 0), 127 [LOW_INT_STATUS_1] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 1, 1), 128 [LOW_INT_STATUS_2] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 2, 2), 129 [LOW_INT_STATUS_3] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 3, 3), 130 [LOW_INT_STATUS_4] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 4, 4), 131 [LOW_INT_STATUS_5] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 5, 5), 132 [LOW_INT_STATUS_6] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 6, 6), 133 [LOW_INT_STATUS_7] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 7, 7), 134 [UP_INT_STATUS_0] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 8, 8), 135 [UP_INT_STATUS_1] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 9, 9), 136 [UP_INT_STATUS_2] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 10, 10), 137 [UP_INT_STATUS_3] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 11, 11), 138 [UP_INT_STATUS_4] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 12, 12), 139 [UP_INT_STATUS_5] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 13, 13), 140 [UP_INT_STATUS_6] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 14, 14), 141 [UP_INT_STATUS_7] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 15, 15), 142 143 /* NO CRITICAL INTERRUPT SUPPORT on v1 */ 144 145 /* Sn_STATUS */ 146 REG_FIELD_FOR_EACH_SENSOR11(LAST_TEMP, TM_Sn_STATUS_OFF, 0, 9), 147 REG_FIELD_FOR_EACH_SENSOR11(VALID, TM_Sn_STATUS_OFF, 14, 14), 148 /* xxx_STATUS bits: 1 == threshold violated */ 149 REG_FIELD_FOR_EACH_SENSOR11(MIN_STATUS, TM_Sn_STATUS_OFF, 10, 10), 150 REG_FIELD_FOR_EACH_SENSOR11(LOWER_STATUS, TM_Sn_STATUS_OFF, 11, 11), 151 REG_FIELD_FOR_EACH_SENSOR11(UPPER_STATUS, TM_Sn_STATUS_OFF, 12, 12), 152 /* No CRITICAL field on v1.x */ 153 REG_FIELD_FOR_EACH_SENSOR11(MAX_STATUS, TM_Sn_STATUS_OFF, 13, 13), 154 155 /* TRDY: 1=ready, 0=in progress */ 156 [TRDY] = REG_FIELD(TM_TRDY_OFF, 0, 0), 157 }; 158 159 static int __init init_8956(struct tsens_priv *priv) { 160 priv->sensor[0].slope = 3313; 161 priv->sensor[1].slope = 3275; 162 priv->sensor[2].slope = 3320; 163 priv->sensor[3].slope = 3246; 164 priv->sensor[4].slope = 3279; 165 priv->sensor[5].slope = 3257; 166 priv->sensor[6].slope = 3234; 167 priv->sensor[7].slope = 3269; 168 priv->sensor[8].slope = 3255; 169 priv->sensor[9].slope = 3239; 170 priv->sensor[10].slope = 3286; 171 172 return init_common(priv); 173 } 174 175 static const struct tsens_ops ops_generic_v1 = { 176 .init = init_common, 177 .calibrate = calibrate_v1, 178 .get_temp = get_temp_tsens_valid, 179 }; 180 181 struct tsens_plat_data data_tsens_v1 = { 182 .ops = &ops_generic_v1, 183 .feat = &tsens_v1_feat, 184 .fields = tsens_v1_regfields, 185 }; 186 187 static const struct tsens_ops ops_8956 = { 188 .init = init_8956, 189 .calibrate = tsens_calibrate_common, 190 .get_temp = get_temp_tsens_valid, 191 }; 192 193 struct tsens_plat_data data_8956 = { 194 .num_sensors = 11, 195 .ops = &ops_8956, 196 .feat = &tsens_v1_feat, 197 .fields = tsens_v1_regfields, 198 }; 199 200 static const struct tsens_ops ops_8976 = { 201 .init = init_common, 202 .calibrate = tsens_calibrate_common, 203 .get_temp = get_temp_tsens_valid, 204 }; 205 206 struct tsens_plat_data data_8976 = { 207 .num_sensors = 11, 208 .ops = &ops_8976, 209 .feat = &tsens_v1_feat, 210 .fields = tsens_v1_regfields, 211 }; 212